Adjustable ventilator



Jan. 4, 1949. c. D. BELDEN 2,458,134

ADJ US TABLE VENTILATOR Filed May 4, 1946 WW EM Patented Jan. 4, 1949UNITED STATES PATENT OFFICE 2,458,134 ADJUSTABLE VENTILATOR .Clark D.Belden, Minneapolis, Minn.

Application May 4, 1946, Serial No. 667,312

3 Claims. (Cl. 160-223) This invention relates to ventilators and moreparticularly to a type of ventilator such as is well adapted forinstallation in an end wall of the roof portion of an attic or the like.

More specifically, the invention pertains to a ventilator having anexpansible and contractible inverted V-frame with a complemental louverassembly, the louvers being sectional'and extensible and contractible inconjunction with the ad- J'ustable sections of the frame.

" In carrying out the principles of the invention, this through themedium of the special structural adaptation above covered, I have thusprovided a ventilator which lends itself, admirably well, to dispositionin the extreme upper region of the roof structure, the factor ofadiustability being such as to accommodate roof constructions of varyingpitches.

Other objects, features and advantages will become more readily apparentfrom the following description and accompanying illustrative drawings.

In the drawings, wherein like numerals are employed to designate likeparts throughout the views:

Figure 1 is a fragmentary end elevation of a portion of an attic roofshowing the improved adjustable ventilator, and the manner in which itis arranged and mounted in place for use.

Figure 2 is an enlarged sectional view, this on the plane of the line 22of Figure 1, looking in the direction of the arrows.

Figure 3 is a section on the line 3-3 of Figure 2.

Figure 4 is a horizontal section on the line 4-4 of Figure 1, lookingupwardly in the direction of the arrows,

Referring now to the drawings by distinguishing reference numerals, theattic roof, as a unit, is denoted by the numeral 5 and comprisesdownwardly and outwardly diverging portions including usual structuralparts among which are the so-called frieze-boards 6. The ventilator isadapted to fit in the crotch portion defined by these boards 6.

The ventilator comprises an inverted V-frame made up of duplicatecomplemental frame sections 1, each in the form of an elongated channelbar. Th converging ends of the section I are hingedly connected togetheras at 8 and thus permit said sections to be moved toward and from eachother to fit against and be secured to the boards 6.

The louver assembly forming the ventilating panel is made up, as usual,of a plurality of outwardly and downwardly inclined louvers 9 mounted inthe V-frame. All of the louvers are the same in construction except theextra louver So at the bottom, this having a depending perpendicularapron l0. That is to say. each louver comprises companion telescopicallyconnectedv sections 1 I and I2 of standard form as far as the bodyportions are concerned. The main distinction in these louvers overothers is the fact that the outer ends of the sections II and I2 areprovided with laterally directed wing-dike flanges l3, and these flangesterminate in suitably bent, hinge and attaching knuckles ll. Theknuckles are hlngedly mounted on cross pins l5, these pins mounted inthe channel sections 1 as shown to advantage in Figures 2 and 3. Thesehinged connections lend the frame sections and louver sections adaptableto assuming theirproper relative relationships as the frame is eithercontracted or spread according to the angularlty of the roof parts 6. Orto put it otherwise, since the frame is adjustable it conforms to thepitch of the parts 6 in an obvious manner. It will be noted that thecompensating flanges l3 are at acute angles to the sections H and I2.

After the ventilator is installed as shown in the drawings, it is mostdesirable and permissible to attach a screen (not shown) to the interioror exterior side to contribute to the efficiency.

An outstanding advantage attending a v entilator construction of thetype herein disclosed is that it can be placed higher up in the attic,that is, in the so-called crotch portion of the inverted V-roof therebyassuring more satisfactory ventilating results. There will be aconsiderable saving in time and labor, and perhaps expense in installingthis type of ventilator over the square type, such as is employed inroofs of the type shown. Where a square type is employed, especially instucco covered houses, the step of cutting the hole to accommodate theinsertible ventilator must be attended with unusual care so as not tosplit or crack the surrounding surfaces.

With this adjustable inverted V-type ventilator it will be necessary tobe careful only in cutting the bottom or horizontal cut of the openingmade for accommodation of the ventilator, that is in houses which areconstructed prior to installation of the ventilator. It is evident thatthe preparation of a four-sided hole for a ventilator is attended byobvious difllculties and that the form of ventilator herein shownpromises better results.

A careful consideration of the foregoing description in conjunction withthe invention as il- 3 lustrated in the drawings will enable the readerto obtain a clear understanding and impression of the alleged featuresof merit and novelty sumcient to clarify the construction of theinvention as hereinafter claimed.

Minor changes in shape, size, materials and rearrangement of parts maybe resorted to in actual practice so long as no departure is made fromthe invention as claimed.

I claim:

1. A ventilator of the class described comprising an inverted V-framemade up of a pair of complemental channel-shaped members, correspondingends of said members at one end of said V- frame being hingedlyconnected together, a plurality of ventilating louvers assembled betweensaid frame members, said louvers being individually extensible andcontractible and hingedly connected at their outer ends to the framemembers.

I 2. A ventilator of the class described comprising a frame made up of apair of diverging channel-shaped members, the inner ends of said membersbeing hingedly connected together, and louvers, each louver being madeup of telescopically connected sections, the outer ends of the sectionshaving laterally bent flanges, said frame members being provided withhinge pins, and said flanges being hingedly mounted on said pins.

3. A louver-type attic ventilator or general t angular form adapted foruse in an attic roof construction having downwardly and outwardlypitched roof members comprising an inverted V- frame embodyin a pair ofduplicate frame members hingedly connected, one to the other, atcorresponding ends and thus adapted to be swung toward and from eachother for adjustment purposes, a multiple louver ventilating panelembodying longitudinally extensible and retractible louvers, and meanshingedly connecting the outerends of said louvers with said framemembers. whereby the latter are lengthened or shortened as the framemembers are spread apart or moved toward one another,

CLARK 12.3mm.

REFERENCES CITED UNITED STATES PA'I'EN"S Name Date Ferguson Nov. 27,1945 OTHER REFERENCES Sweet's Catalog, 1937, section 8, pp. 32, 33, 34.(In Div. 33.)

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